diff --git a/lib/services/address/index.js b/lib/services/address/index.js
index b5bad5e3..1e6aa797 100644
--- a/lib/services/address/index.js
+++ b/lib/services/address/index.js
@@ -70,7 +70,7 @@ AddressService.prototype.getAddressHistory = function(addresses, options, callba
     }
 
     txList = utils.dedupByTxid(txList);
-    txList = utils.orderByConfirmationsDesc(txList);
+    txList = utils.orderByConfirmations(txList);
 
     var results = {
       totalCount: txList.length,
@@ -313,9 +313,10 @@ AddressService.prototype._getTxidStream = function(address, options) {
 AddressService.prototype._transformTxForAddressHistory = function(opts, chunk, enc, callback) {
 
   var self = this;
-  var key = self._encoding.decodeAddressIndexKey(chunk);
 
-  self._tx.getTransaction(key.txid, opts, function(err, tx) {
+  var txid = _.isString(chunk) ? chunk : self._encoding.decodeAddressIndexKey(chunk).txid;
+
+  self._tx.getTransaction(txid, opts, function(err, tx) {
 
     if (err) {
       log.error('Address Service: gettransaction ' + err);
@@ -324,7 +325,7 @@ AddressService.prototype._transformTxForAddressHistory = function(opts, chunk, e
     }
 
     if (!tx) {
-      log.error('Address Service: Could not find tx for txid: ' + key.txid + '. This should not be possible, check indexes.');
+      log.error('Address Service: Could not find tx for txid: ' + txid + '. This should not be possible, check indexes.');
       opts.stream.emit('error', err);
       return callback();
     }
@@ -353,6 +354,7 @@ AddressService.prototype._getTxStream = function(address, options) {
 
 };
 
+// main api function for insight-api/bws
 AddressService.prototype._getAddressHistory = function(address, options, callback) {
 
   var self = this;
@@ -371,7 +373,6 @@ AddressService.prototype._getAddressHistory = function(address, options, callbac
 
   async.waterfall([
 
-    // get all the txs from the mempool that involve our address
     function(next) {
 
       if (!options.queryMempool) {
@@ -396,12 +397,16 @@ AddressService.prototype._getAddressHistory = function(address, options, callbac
       });
 
       if (mempoolTxids.length > 0) {
-        var mempoolxidStream = new Stream.Readable({ objectMode: true });
-        mempoolxidStream.pipe(txStream);
+
+        var mempoolTxidStream = new Stream.Readable({ objectMode: true });
+
+        mempoolTxidStream.pipe(txStream);
+
         mempoolTxids.forEach(function(txid) {
-          mempoolxidStream.push(txid);
+          mempoolTxidStream.push(txid);
         });
-        mempoolxidStream.unpipe();
+
+        mempoolTxidStream.push(null);
       }
 
       var txidStream = self._getTxidStream(address, options);
diff --git a/lib/services/block/index.js b/lib/services/block/index.js
index 28b9958f..c5cfc061 100644
--- a/lib/services/block/index.js
+++ b/lib/services/block/index.js
@@ -386,17 +386,24 @@ BlockService.prototype.stop = function(callback) {
   setImmediate(callback);
 };
 
-BlockService.prototype._getTimeSinceLastBlock = function(blockHash, prevBlockHash, callback) {
+BlockService.prototype._getTimeSinceLastBlock = function(callback) {
 
   var self = this;
 
-  async.map([ blockHash, prevBlockHash ], function(hash, next) {
-    self._timestamp.getTimestamp(hash, next);
-  }, function(err, times) {
-    if (err) {
-      return callback(err);
+  self._header.getBlockHeader(Math.max(self._tip.height - 1, 0), function(err, header) {
+
+    if(err || !header) {
+      return callback(err || new Error('Block Service: we should have a header in order to get time since last block.'));
     }
-    return callback(null, utils.convertMillisecondsToHumanReadable((times[0] * 1000) - (times[1] * 1000)));
+
+    async.map([ self._tip.hash, header.hash ], function(hash, next) {
+      self._timestamp.getTimestamp(hash, next);
+    }, function(err, times) {
+      if (err) {
+        return callback(err);
+      }
+      return callback(null, utils.convertMillisecondsToHumanReadable((times[0] * 1000) - (times[1] * 1000)));
+    });
   });
 
 };
@@ -413,7 +420,7 @@ BlockService.prototype._queueBlock = function(block) {
       return self._handleError(err);
     }
 
-    self._logSynced(block.rhash(), true);
+    self._logSynced(block.rhash());
     self._blocksInQueue--;
 
   });
@@ -837,7 +844,7 @@ BlockService.prototype._setTip = function(tip, callback) {
   this._saveTip(tip, callback);
 };
 
-BlockService.prototype._logSynced = function(blockHash, noHeight) {
+BlockService.prototype._logSynced = function() {
 
   var self = this;
 
@@ -845,58 +852,14 @@ BlockService.prototype._logSynced = function(blockHash, noHeight) {
     return;
   }
 
-  var blockHeight;
-  var timeDiff;
-
-  async.waterfall([
-    function(next) {
-
-      if (noHeight) {
-        return next(null, null);
-      }
-
-      self._header.getBlockHeader(blockHash, function(err, header) {
-
-        if (err) {
-          return next(err);
-        }
-
-        if (!header) {
-          return next(null, null);
-        }
-
-        blockHeight = header.height;
-        next(null, header.prevHash);
-      });
-    },
-    function(prevBlockHash, next) {
-
-      if (!prevBlockHash) {
-        return next();
-      }
-
-      self._getTimeSinceLastBlock(blockHash, prevBlockHash, function(err, diff) {
-
-        if (err) {
-          return self._handleError(err);
-        }
-
-        timeDiff = diff;
-        next();
-      });
-    }
-  ], function(err) {
+  self._getTimeSinceLastBlock(function(err, diff) {
 
     if (err) {
       return self._handleError(err);
     }
 
-    var supplementals = '';
-    if (blockHeight && timeDiff) {
-      supplementals += ' at height: ' + blockHeight + '. Time between the last 2 blocks (adjusted): ' + timeDiff;
-    }
-
-    log.info('Block Service: The best block hash is: ' + blockHash + supplementals);
+    log.info('Block Service: The best block hash is: ' + self._tip.hash +
+      ' at height: ' + self._tip.height + '. Time between the last 2 blocks (adjusted): ' + diff);
 
   });
 
diff --git a/lib/services/mempool/index.js b/lib/services/mempool/index.js
index 49adac35..d2efdba6 100644
--- a/lib/services/mempool/index.js
+++ b/lib/services/mempool/index.js
@@ -163,7 +163,7 @@ MempoolService.prototype.getTxidsByAddress = function(address, callback) {
   stream.on('data', function(data) {
     var tx = self._encoding.decodeMempoolTransactionValue(data.value);
     var txid = self._involvesAddress(tx, address);
-    if (tx) {
+    if (txid) {
       results.push(txid);
     }
   });
diff --git a/lib/services/transaction/index.js b/lib/services/transaction/index.js
index 8d6e4b23..71581a1f 100644
--- a/lib/services/transaction/index.js
+++ b/lib/services/transaction/index.js
@@ -142,8 +142,8 @@ TransactionService.prototype._getSupplementaryTransactionInfo = function(txid, t
 
     if (header) {
       // Do we need both of these?
-      tx.blockHash = header.hash;
-      tx.__blockHash = header.hash;
+      tx.blockhash = header.hash;
+      tx.__blockhash = header.hash;
     }
 
     callback(null, txid, tx, options);